Guardian: For a couple of years now we’ve been told that local is the new organic, the next fad for the ethically-minded food shopper. And, hey, it’s true! How do I know? Because the supermarkets have got hold of the idea. Sales of “local” foods and drinks are up 30% at Tesco, 41% at Asda. “Local” is as big as fish now, says Asda. The store is “very proud” to be stocking 6,500 “local” lines. “Local” badly needs those inverted commas. It is yet another of those homely epithets – like “natural”, …